earth tophr.earthn.地球；泥土；世间earth station technology地面站技术earth and water pressure水土压力earth-moving equipment推土设备,运土设备,堆土设备earth-resistance meter地电阻表earth observation system地球观察系统earth-coverage antenna覆球天线earth reckfill cofferdam土石围堰earth leakage protection接地漏电保护earth resource satellite[计] 地球资源卫星Earth volume calculation土石方计算